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Which role is played by lactic acid bact...

Which role is played by lactic acid bacteria (LAB) in our stomach?

A

Beneficial

B

Harmful

C

Neutral

D

All of these

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Lactic Acid Bacteria (LAB)**: - Lactic Acid Bacteria are a group of beneficial bacteria that play a crucial role in the fermentation process. They are commonly found in fermented foods like yogurt, cheese, and pickles. 2. **Inoculation in Milk**: - When LAB is introduced to milk, it acts as an inoculum. This means that LAB initiates the fermentation process that converts milk into curd. 3. **Fermentation Process**: - During fermentation, LAB partially breaks down lactose (the sugar present in milk) into lactic acid. This process not only thickens the milk but also gives it a tangy flavor. 4. **Role of Lactic Acid**: - The lactic acid produced during fermentation has several benefits. One of the primary roles of lactic acid in the stomach is its ability to create an acidic environment. 5. **Killing Harmful Bacteria**: - The acidic environment created by lactic acid helps to inhibit the growth of harmful bacteria in the stomach. This is crucial for maintaining gut health and preventing infections. 6. **Conclusion**: - Therefore, Lactic Acid Bacteria play a beneficial role in our stomach by producing lactic acid, which helps kill harmful bacteria and supports a healthy digestive system.
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